CVE-2021-34337

A timing attack was found in the mailman administrative REST API due to the usage of a simple string comparison function when checking the password. This flaw allows an attacker who can talk to the REST API to discover the admin password due to timing leaks.

This issue did not affect the versions of mailman as shipped with Red Hat Enterprise Linux 6, 7, and 8 as they did not include support for the administrative REST API, which was introduced in mailman 3.

This flaw has a moderate Impact due to the requirement that is needed in order for an attacker to access the REST API. By default, the REST API is only accessible to localhost and it should never be exposed to the public internet, according to mailman documentation.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.